Panasonic SA-PT250EE Service Manual ▷ View online
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GENERAL
Power Supply:
AC 230 V, 50 Hz
Power Consumption:
125 W
Power Consumption in Standby Mode:
approx. 0.8 W
Dimensions (W×H×D):
430×60×363 mm
Mass:
Main unit approx. 3.5 kg
Operating Temperature Range:
+5°C to +35°C
Operating Humidity Range:
5% to 90% RH (no
condensation)
condensation)
O
O
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AMPLIFIER SECTION
RMS Output Power: Dolby Digital Mode
O
O
O
O
Total RMS Dolby Digital mode power:
750 W
At 1 kHz and total harmonic of 10%
O
O
O
O
Front Ch:
125 W / Channel (3
Ω
)
O
O
O
O
Center Ch:
125 W / Channel (3
Ω
)
O
O
O
O
Surround Ch:
125 W / Channel (3
Ω
)
At 100 Hz and total harmonic of 10%
SA-PT250EE
Colour
(S).......................Silver Type
O
O
O
O
Subwoofer Ch:
125 W / Channel (3
Ω
)
DIN Output Power: Dolby Digital Mode
O
O
O
O
Total DIN Dolby Digital mode power:
450 W
At 1 kHz and total harmonic of 1%
O
O
O
O
Front Ch:
75 W / Channel (3
Ω
)
O
O
O
O
Center Ch:
75 W / Channel (3
Ω
)
O
O
O
O
Surround Ch:
75 W / Channel (3
Ω
)
At 100 Hz and total harmonic of 1%
O
O
O
O
Subwoofer Ch:
75 W / Channel (3
Ω
)
O
O
O
O
FM TUNER, TERMINALS SECTION
Preset Memory:
FM 30 stations
Frequency Modulation (FM)
Frequency range:
87.50-108.00 MHz
(50-kHz step)
Sensitivity:
1.8 µV (IHF)
S/N 26 dB:
1.4 µV
Antenna terminals:
75
Ω
(unbalanced)
Phone Jack:
DVD Home Theater Sound System
Specifications
ORDER NO. MD0705022CE
Terminal:
Stereo, 3.5 mm jack
Mic Jack:
Sensitivity:
0.7 mV, 1.2 k
Ω
Terminal:
Mono, 6.3 mm jack (2 system)
Front Music Port:
Sensitivity:
100 mV, 1.4 k
Ω
Terminal:
Stereo, 3.5 mm jack
USB Port:
USB standard:
USB 2.0 full speed
Media file format support:
MP3 (*.mp3)
WMA (*.wma)
JPEG (*.Jpg, *.JPEG)
MPEG4 (*.asf)
USB device file system:
(FAT12) (FAT16) (FAT32)
USB Port power:
Max. 500 mA
O
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DISC SECTION
Discs played (8 cm or 12 cm):
(1)
DVD [DVD-Video, DivX (*6, *7)]
(2)
DVD-RAM [DVD-VR, MP3 (*2, *7), JPEG (*4, *7), MPEG4
(*5, *7), DivX (*6, *7)]
(*5, *7), DivX (*6, *7)]
(3)
DVD-R [DVD-Video, DVD-VR, MP3 (*2, *7), JPEG (*4, *7),
MPEG4 (*5, *7), DivX (*6, *7)]
MPEG4 (*5, *7), DivX (*6, *7)]
(4)
DVD-R DL [DVD-Video, DVD-VR]
(5)
DVD-RW [DVD-Video, DVD-VR, MP3 (*2, *7), JPEG (*4, *7),
MPEG4 (*5, *7), DivX (*6, *7)]
MPEG4 (*5, *7), DivX (*6, *7)]
(6)
+R/+RW [Video]
(7)
+R DL [Video]
(8)
CD, CD-R/RW [CD-DA, Video CD, SVCD (*1), MP3 (*2, *7),
WMA (*3, *7), JPEG (*4, *7), MPEG4 (*5, *7), DivX (*6, *7)]
WMA (*3, *7), JPEG (*4, *7), MPEG4 (*5, *7), DivX (*6, *7)]
*1 Conforming to IEC62107
*2 MPEG-1 Layer 3, MPEG-2 Layer 3
*3 Windows Media Audio Ver.9.0 L3
O
Not compatible with Multiple Bit Rate (MBR)
*4 Exif Ver 2.1 JPEG Baseline files
O
Picture resolution: between 160 x 120 and 6144 x 4096
pixels (Sub sampling is 4:0:0, 4:2:0, 4:2:2, or 4:4:4).
Extremely long and narrow pictures may not be displayed.
Extremely long and narrow pictures may not be displayed.
*5 MPEG4 data recorded with the Panasonic SD multi cameras
or DVD video recorders.
O
Conforming to SD VIDEO specifications (ASF standard)/
MPEG4 (Simple Profile) video system/G.726 audio system.
*6 Plays all versions of DivX® video (including DivX®6) with
standard playback of DivX® media files. Certified to the DivX
Home Theater Profile.
Home Theater Profile.
*7 The total combined maximum number of recognizable audio,
picture and video contents and groups: 4000 audio, picture
and video contents and 400 groups.
and video contents and 400 groups.
Pick Up:
Wavelength:
O
O
O
O
CD:
785 nm
O
O
O
O
DVD:
662 nm
Laser power:
O
O
O
O
CD:
CLASS 1M
O
O
O
O
DVD:
CLASS 1
Audio Output (Disc):
Number of channels:
5.1 ch (FL, FR, C, SL, SR,
SW)
SW)
O
O
O
O
VIDEO SECTION
Video System:
PAL 625/50, PAL 525/60,
NTSC
NTSC
Composite Video Output:
O
O
O
O
Output level:
1 Vp-p (75
Ω
)
O
O
O
O
Terminal:
Scart jack (1 system)
S-video Output:
O
O
O
O
Y output level:
1 Vp-p (75
Ω
)
O
O
O
O
C output level:
PAL; 0.3 Vp-p (75
Ω
)
NTSC; 0.286 Vp-p (75
Ω
)
O
O
O
O
Terminal
Scart jack (1 system)
Component Video Output: (NTSC: 480p/480i, PAL: 576p/576i)
O
O
O
O
Y output level:
1 Vp-p (75
Ω
)
O
O
O
O
P
B
output level:
0.7 Vp-p (75
Ω
)
O
O
O
O
P
R
output level:
0.7 Vp-p (75
Ω
)
O
O
O
O
Terminal:
Pin jack (Y: green, P
B
: blue,
P
R
: red) (1 system)
RGB Video Output:
O
O
O
O
R output level:
0.7 Vp-p (75
Ω
)
O
O
O
O
G output level:
0.7 Vp-p (75
Ω
)
O
O
O
O
B output level:
0.7 Vp-p (75
Ω
)
O
O
O
O
Terminal:
Scart jack (1 system)
Note:
1.
Specifications are subject to change without notice.
Mass and dimensions are approximate.
2.
Total harmonic distortion is measured by the digital spectrum
analyzer.
analyzer.
Solder:
This model uses lead free solder (PbF).
Mechanism:
This model uses DL2S (Single tray) mechanism.
Refer to their respective original service manuals for *1, *2,
*3, *4.
*3, *4.
2
SA-PT250EE
1
Safety Precautions
6
1.1.
GENERAL GUIDELINES
6
1.2.
Before Repair and Adjustment
6
1.3.
Protection Circuitry
6
1.4.
Safety Parts Information
7
CONTENTS
Page
Page
3
SA-PT250EE
2
Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
8
3
Precaution of Laser Diode
9
4
About Lead Free Solder (PbF)
10
4.1.
Service caution based on legal restrictions
10
5
Handling Precautions for Traverse Unit
11
5.1.
Cautions to Be Taken in Handling the Optical Pickup Unit
11
5.2.
Grounding for electrostatic breakdown prevention
11
6
Accessories
13
7
Operation Procedures
14
7.1.
Remote Control Key Buttons Operations
14
7.2.
Main Unit Key Buttons Operations
15
7.3.
Music Port Connection and Operation
16
7.4.
USB Connection and Operation
17
7.5.
Audio & Video Connections
18
7.6.
Disc Information
19
8
Self-Diagnosis and Special Mode Setting
21
8.1.
Service Mode Summary Table
21
8.2.
Service Mode Table
21
8.3.
DVD Self Diagnostic Function-Error Code
29
8.4.
Sales Demonstration Lock Function
32
8.5.
Service Precautions
33
9
Assembling and Disassembling
34
9.1.
Disassembly Flow Chart
35
9.2.
Main Components and P.C.B. Locations
36
9.3.
Disassembly of Top Cabinet
37
9.4.
Disassembly of the DVD Lid (When taking out disc
manually)
37
9.5.
Disassembly of Front Panel
38
9.6.
Disassembly of Volume P.C.B.
38
9.7.
Disassembly of Mic P.C.B.
39
9.8.
Disassembly of Panel P.C.B.
39
9.9.
Disassembly of USB P.C.B.
40
9.10. Disassembly of Scart P.C.B.
40
9.11. Disassembly of Rear Panel
40
9.12. Disassembly of DVD Mechanism Unit
41
9.13. Disassembly of DVD Module P.C.B.
41
9.14. Disassembly of Main P.C.B.
41
9.15. Replacement of Regulator IC (IC2903)
42
9.16. Disassembly of D-Amp P.C.B.
42
9.17. Replacement of Digital Amp IC (IC5000)
43
9.18. Disassembly of SMPS & AC-Inlet P.C.B.
44
9.19. Replacement of Switch Regulator IC/Diode
(IC5701/D5702)
44
9.20. Replacement of Regulator Diode (D5801/D5802)
45
9.21. Replacement of Regulator Diode (D5803)
45
10 Assembly and Disassembly of DVD Mechanism Unit
47
10.1. Disassembly Procedure
47
11 Service Position
52
11.1. Checking & Repairing Scart P.C.B.
52
11.2. Checking & Repairing Panel P.C.B.
52
11.3. Checking & Repairing Mic P.C.B.
52
11.4. Checking & Repairing Main P.C.B.
52
11.5. Checking & Repairing D-Amp P.C.B.
53
11.6. Checking & Repairing DVD Module P.C.B.
53
11.7. Checking & Repairing SMPS P.C.B.
54
12 Measurements and Adjustments
55
12.1. Service Tools and Equipment
55
12.2. Important points in adjustment
55
12.3. Storing and handling of test discs
55
12.4. Optical adjustment
56
13 Abbreviations
57
14 Voltage and Waveform Chart
59
14.1. DVD Module P.C.B.
59
14.2. Main P.C.B.
60
14.3. D-Amp P.C.B.
61
14.4. SMPS P.C.B.
61
14.5. Panel & Tray Loading P.C.B.
62
14.6. Scart P.C.B.
62
14.7. Mic P.C.B.
62
14.8. Waveform Chart
63
15 Illustration of IC’s, Transistors and Diodes
65
16 Wiring Connection Diagram
67
17 Block Diagram
69
17.1. System Control
69
17.2. DVD (Servo)
70
17.3. DVD (Audio)
71
17.4. DVD (Video)
72
17.5. Audio
73
17.6. Audio Digital Amp
74
17.7. Power
75
18 Schematic Diagram Notes
77
19 Schematic Diagram
79
19.1. DVD Module Circuit
79
19.2. Main, Panel & Mic Circuit
83
19.3. D-Amp & SMPS Circuit
89
19.4. Scart Circuit
93
19.5. Volume, USB, AC-Inlet, Tray Loading & Optical Pickup
Unit Circuit
94
20 Printed Circuit Board
97
20.1. DVD Module P.C.B.
97
20.2. Main P.C.B.
98
20.3. Panel, Volume & USB P.C.B.
99
20.4. D-Amp P.C.B.
100
20.5. SMPS P.C.B.
101
20.6. Mic, AC-Inlet, Scart, & Tray Loading P.C.B.
102
21 Basic Troubleshooting Guide
103
21.1. Basic Troubleshooting Guide for Traverse Unit (DVD
Module P.C.B)
103
22 Overall Block Diagram for PT250
104
22.1. SC-PT250 Simplified Block
104
22.2. SC-PT250 Power Block
105
22.3. SC-PT250 SMPS Block
106
23 Terminal Function of ICs
107
23.1. IC2001 (C2CBYY000440): System Control IC
107
24 Exploded Views
108
24.1. Cabinet Parts Location
109
4
SA-PT250EE
